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I have two iMacs sitting together on the same network. One is older and running Mojave the other is new and running Catalina. Both are using Java 8 and both are listening to the same multicast ...
kevdev's user avatar
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3 votes
1 answer
2k views

I followed the Apple instructions carefully. guard let multicast = try? NWMulticastGroup(for:[ .hostPort(host: "224.0.0.251", port: 5353) ]) else { NSLog("ERROR"); return } ...
Greelings's user avatar
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1 answer
549 views

I have a C Project to implement Multicast in C language, Here server(only one) sends data,and clients receive data sent by server( multiple). Here The issue is, I want the server to Clients to ...
PythonProcrastinator's user avatar
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5 votes
2 answers
4k views

I am trying to resolve IPv4 and IpV6 from ".local" using multicast DNS and I tried https://github.com/posicks/mdnsjava but it unable to resolve required ipv4/ipv6. Alternatively, I found one ...
Tanmay Ranjan's user avatar
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0 votes
1 answer
4k views

I'm having problem with using udp_multicast transport method using ffmpeg or ffplay as a client to a webcam. TCP transport works: ffplay -rtsp_transport tcp rtsp://192.168.1.100/videoinput_1/mjpeg_3/...
MAXdB's user avatar
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10 votes
2 answers
4k views

I got spring boot (2.3.2.RELEASE) with camel (3.5.0) application and two routes for testing in it: The idea is to check what happen when exception occurred in child route that was called from ...
alexander kostritsa's user avatar
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1 vote
0 answers
316 views

I am porting an embedded distributed system to windows and I need to send multicast and unicast packets over loopback, I found out that for some unknown reason sending multicast takes 2x time than ...
PrzemekK's user avatar
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1 vote
1 answer
401 views

A server is streaming videos and the source IP of the packet is 192.168.1.1 and the destination multicast IP is 239.1.1.1. Question 1. Who decides which multicast IP to use? Is it decided by Server or ...
Mukesh Kumar's user avatar
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0 votes
2 answers
148 views

We currently want a way to pass data between devices with sockets so we used ZeroMQ on our server-side with a python script and everything seems to be working. Our protocol address currently is epgm://...
Richard Wei's user avatar
  • 97
0 votes
1 answer
806 views

I have a surveillance Camera and i want to stream the live feed to multiple clients in the same network using WebRTC. To save compute resource and bandwidth requirement i want to do multicasting on ...
Mukesh Kumar's user avatar
  • 322
2 votes
1 answer
1k views

I have a simple multicast writer and reader pair that uses WinSock (code below). If I do not specify the IP address to multicast from (using IP_MULTICAST_IF), I can read the multicast using a socket ...
GiantBen's user avatar
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0 votes
0 answers
772 views

I'm writing in Python software that runs on my Windows (and Linux) PC, while the PC is connected via LAN (with or without a router) to a second device. The second device sends UDP multicast packets to ...
edumarg's user avatar
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0 answers
132 views

Background: I have a system where, ordinarily, each user connects to a server via a long-running TCP connection. Each user has their own private key for connecting to the server over this TCP ...
John Montgomery's user avatar
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9 votes
3 answers
9k views

Following iOS 14 new policy of blocking access to local network, a com.apple.developer.networking.multicast special entitlement is needed to access the local network, and this access should be ...
Daniel Mavrakis's user avatar
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0 votes
2 answers
2k views

I'm newbie in Apache Camel, so please forgive me for the stupid question. I am browsing examples of sending messages using multicast and I don't understand it. I know that (in the network layer) ...
koli's user avatar
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0 answers
130 views

I am playing with a sample "save indicator" that relies on RxJS. Here is the full source code: import { fromEvent, of, merge, empty, concat, defer } from 'rxjs'; import { delay, map, ...
balteo's user avatar
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1 vote
1 answer
382 views

I want to write program that send and receive multicast simultaneously like below int main() { const string group_address = "235.127.1.1"; constexpr uint16_t PORT_NUMBER = 8765; ...
sorosh_sabz's user avatar
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1 vote
1 answer
279 views

I have program that want to send a message with async_send_to to one multicast group. but I want to this action is blocking not async, so I use use_future for achieve this goal like below gw::...
sorosh_sabz's user avatar
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1 vote
0 answers
101 views

I'm new to Python sockets and with multicast in general. I have seen here and other places different codes to do Multicast and I'm using one of does codes The client code is on a Windows 10 at the ...
edumarg's user avatar
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0 votes
1 answer
440 views

I want to build an overlay network through VXLAN multicast to achieve communication between virtual machines, but I found that multicast packets can only be transmitted on the same subnet. In order to ...
consteven's user avatar
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3 votes
0 answers
357 views

I'm working on a UWP/Xamarin.Android app that uses SSDP multicast search to detect other devices on the local network that are running the same app. I've been able to send out multicast messages with ...
Ryken100's user avatar
  • 41
0 votes
1 answer
2k views

I am developing an app in .net using libvlcsharp VideoView control. I need to pull multicast streams from cameras and so I want to set the command line parameter --rtsp-mcast. The purpose of the app ...
mooncaptain's user avatar
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1 vote
1 answer
4k views

On one of my systems at work good ol' netstat shows multicast group membership information, and ss is missing a couple. I wonder why. For example: [root@myhost ~]# netstat -gn | egrep "Inter|239....
Mike S's user avatar
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1 vote
1 answer
771 views

I have an SSIS MULTICAST object that splits my flow into 2 paths. 1st path: i need to update a row; 2nd path: I need to insert a row. Basically, I am implementing SCD TYPE2 data in SSIS without using ...
Kay's user avatar
  • 195
0 votes
1 answer
530 views

This is from a working legacy code base that has already been ported to and is still shared by several other hardware platforms so making a major change to this method is not a good solution. This is ...
jacknad's user avatar
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2 votes
2 answers
2k views

I am struggling with muxing a few UDP inputs (SPTS from file) in one UDP output (MPTS). When I use following command ffmpeg -thread_queue_size 2048 -i "udp://233.0.0.1:4005?fifo_size=1000000&...
Przemo's user avatar
  • 193
3 votes
0 answers
1k views

I am trying to make a service discovery for my app, So I tried it first in Dart and it worked. When I built it on flutter, it doesnt work properly. I have acquired the wifimulticastlock through ...
SantaClaus5's user avatar
  • 31
1 vote
0 answers
1k views

I have a VM running in Fusion that I want to hit by routing a specific endpoint address through the virtual ethernet interface (multicast DNS, in particular). First I was sending packets and ...
sherrellbc's user avatar
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0 votes
1 answer
655 views

I have deployed ActiveMQ brokers pod with statefulset object. The configuration of activeMQ is the following: <networkConnectors> <networkConnector uri="multicast://default" ...
LDom's user avatar
  • 5
0 votes
0 answers
190 views

I'm trying to write a routine that will poll incoming UDP multicast messages sent to multiple ports on a single multicast group, across all network interfaces. I can do this using DatagramSocket, but ...
citizenmatt's user avatar
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0 votes
0 answers
252 views

I have setup two PC in the local network. One is Linux PC where i am running a Script, sending Heart beat message every 1s over UDP as IPv6 multicast message (FF02::1). In the other windows PC, I am ...
meeman's user avatar
  • 1
0 votes
1 answer
242 views

I am working on a test tool for an existing piece of SW that outputs messages on multicast ip of 240.240.240.1 port 2349. The IP interface on which I am receiving the multicast messages is 192.168.0.4....
Mad Hatter's user avatar
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-1 votes
1 answer
664 views

I would like to choose which network interface to use to send a join request. This is the code I tried but I don't think it's right: static int GetNicIndexByIP(String ipAddress) { int adapterIndex ...
Rick's user avatar
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1 vote
1 answer
759 views

Using the following command to listen in for MCast messages. java -cp $CLASSPATH:./jgroups-all.jar org.jgroups.tests.McastReceiverTest -mcast_addr 228.1.1.1 -port 55555 Based on this image, the 228.1....
Unhandled Exception's user avatar
  • 1,533
1 vote
0 answers
134 views

We have a requirement of Bluetooth module which can be connected to multiple Bluetooth devices(Android phone) at same time. All the paired phones connected to the module should receive data at same ...
meghana kl's user avatar
  • 11
1 vote
0 answers
520 views

I want to send and receive data over UDP using IPv6 multicast address(ff02::1). I am able to send data to multicast address but it's using link local address(fe80: instead of unicast(global) address. ...
Hemal Bavishi's user avatar
  • 9
0 votes
1 answer
2k views

I'm adding a multicast listening feature for an application I'm developing. A device I'm connecting to will send out a multicast packet every second in certain scenarios, and I'd like the user to be ...
P.T. Huff's user avatar
  • 1
1 vote
0 answers
194 views

I am attempting to retrieve the ip of the sender of a multicast packet as well as the destination address/interface to which the multicast packet was sent. When receiving a multicast packet via ...
Alex's user avatar
  • 288
0 votes
1 answer
173 views

I need to send a multicast udp from multihomed computer. Found that in case socket is not bound to some specific interface, default interface will be used (whatever it could mean). My question: is it ...
BUKTOP's user avatar
  • 989
0 votes
1 answer
228 views

I have a pretty simple setup, two computers connected to each other through an ASUS RT-AC87U router and what I am trying to do is to send some packages from one to the other (running a publisher-...
Cooli's user avatar
  • 179
3 votes
1 answer
5k views

I could not find a working example for this, so I am going to post a question (and let's see if I can reduce this to an MVP code example). So, I need to do mdns queries, I can use two sockets (one for ...
Rudolfs Bundulis's user avatar
  • 12k
0 votes
0 answers
119 views

I have a program that receives udp packets- that comprise 1 whole message in multicast. Each udp has a header with id, its packet number in the message, total number of packets in message and some ...
sagicoh1111's user avatar
  • 1
0 votes
1 answer
745 views

_udpAddr = IPAddress.Parse("228.5.6.9"); var port = 3333; IPAddress localAddr = IPAddress.Any; // Create endpoints _remoteEndPoint = new IPEndPoint(...
john. E's user avatar
  • 1
2 votes
1 answer
98 views

I am pretty new to all the network programming. I have some hardware where I normally get 2 bundled messages through a UDP stream (hence I wrote a fake server to simulate the hardware) I have created ...
Onay Karakulak's user avatar
  • 33
0 votes
0 answers
24 views

Ahoi! Im working on a Unity2d application to control multiple devices via UDP. To check if all devices send a response upon receiving a command I try to log the messages into a List after checking if ...
Schaggo Mikatis's user avatar
  • 43
0 votes
0 answers
452 views

I can not send multicast request to LAN from Go on Win10. I have Windows 10 1909. I am running wireshark with filter host 239.255.255.250 or host 172.19.21.116 or port 1982 where .116 is IP of ...
filimonic's user avatar
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2 votes
0 answers
178 views

In Android 9 and below we read /proc/net/igmp to determine this in our VPN app. Android 10, however, has understandably locked down the data in /proc/net. (see here) Is there an "official" way to ...
Grant Limberg's user avatar
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0 votes
0 answers
162 views

I am investigating Micronaut's capabilities for some microservices I want to create. One microservice decodes multicast packets (using vertx), and sends them to a local message broker. If I choose to ...
Mike Stoddart's user avatar
  • 534
0 votes
1 answer
1k views

I would like to send UDP multicast from my docker container which runs on linux machine. I failed to see the UDP multicast packets on my other machine in the network. I tried to use --net=host when I ...
Rotem ben's user avatar
  • 176
0 votes
1 answer
445 views

I need to write multicast listener on Go. I faces the problem of twicing packets when I read it. It seems that I need to set IP_MULTICAST_LOOP to false. It is not easy to do in Go. I found this post. ...
Yura's user avatar
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